baber/WOPTO huggingface dataset:
Patent GB-1131701-A (GB)
Title: Improvements in and relating to roller bases for domestic appliances
Inventor: JERRARD DOUGLAS CHARLES WILLIA
IPC: C10B25/06
Filed: 1965-10-25
Abstract: 1,131,701. Track brakes. SEVERARD Ltd. 20 Oct., 1966 [25 Oct., 1965], No. 45133/65. Heading F2E. In a base for at least partly supporting a wheeled domestic appliance on a surface, wedge elements 20 are movable with respect to a roller 17 mounted, on a bracket. 10 secured to the underside of the. appliance such that when the operating means 30 is in the position shown in Fig. 2 of the drawings, the wedge elements 20 engage the surface 18 to provide a wedging action to restrict translational movement of the base. As shown, the wedge elements 20 take the form of a pair of elements 21 pivoted about the axle 15 and adapted to be urged by a spring 24 into engagement, with the surface 18 and rotational movement of the lever 30, having a cranked cylindrical end portion 31 provided with an internal screw-thread, forces the latter in a downward direction on the vertical screwed stud 19 located on the axle 15 to force the wedge elements 20 apart to allow movement of the base. In an alternative embodiment disclosed in the Specification (Fig. 2, not shown), the axle 15 passing through the bracket 10 of the base is connected to the axle of a similar base provided at an opposite corner of the appliance by means of an elongated sleeve, the axle of each of the bases being connected to the sleeve by means of set screws to allow adjustment of the spacing between the upstanding stud 12 on each of the brackets 10. The operating means for the wedge elements 20 may comprise a screw or camoperating device.
Patent GB-1590445-A (GB)
Title: Enzymatic liquid composition
IPC: C11D3/30
Filed: 1976-11-01
Abstract: The enzymic liquid washing agent, which has improved storage stability and which contains 10-60% by weight of an active detergent, 0.001-10% by weight of an enzyme and 5-70% by weight of water, possesses a stabilising system consisting of   a) 2-25% by weight, based on the finished agent, of a polyfunctional, aliphatic amino compound having at least one amino group and at least two hydroxyl groups, and b) 0.25-15% by weight, based on the finished agent, of boric acid, or its boron equivalent, which is able to react with the polyfunctional amino compound.
Patent GB-1390549-A (GB)
Title: Breathers for heat exchangers
IPC: F28F9/02
Filed: 1972-10-03
Abstract: 1390549 Venting heat exchangers TRANSELEKTRO MAGYAR VILLAMOSSAGI KULKERESKEDELMI VALLALAT 3 Oct 1972 [5 Oct 1972] 45593/71 Heading B8X [Also in Division F4] In a heat exchanger for cooling water utilizing a natural or forced flow of air across a plurality of parallel tubes extending between header chambers, a venting device, in the form of an upright vent pipe 2 surrounded by a jacket 4 defining therewith a chamber 5 which is filled with an antifreeze liquid, e.g. oil, communicates with the top of the upper header 1. The venting device permits air to enter the exchanger during emptying operations and permits air to be expelled from the exchanger during normal operation and during initial filling of the exchanger with water. The antifreeze liquid, which is heated by heat exchange with warm water passing through the exchanger and/or by an electric resistance heater 8, serves to prevent freezing of water in the vent pipe 2 at low temperatures. The jacket 4 is surrounded by heat insulation 6. A single venting device may be used in conjunction with a plurality of heat exchangers (see Figs. 3, 3a). In a modified embodiment (see Fig. 4, not shown), the vent pipe includes a portion (3) of reduced cross-section, and a sphere (4) is provided to float on the surface of the water in the pipe to minimize absorbtion of ambient air into the water during normal operations. The sphere can move between upper and lower grids (8 and 9) disposed in pipe portions of unreduced diameter. In another embodiment (see Figs. 5, 5a) a plurality of small spheres forming a layer on the water surface in the vent pipe is used instead of a single sphere.
Patent GB-1126884-A (GB)
Title: Improvements in and relating to fluid valves
IPC: F16K1/14
Filed: 1966-10-12
Abstract: 1,126,884. Valves. Y. MIYATA. 12 Oct., 1966, No. 45658/66. Heading F2V. A fluid stop valve comprises a valve seat 3 and a valve plunger 2 having opposed concave surfaces, a resilient spherical valve member 1 located intermediate the concave surfaces, and at least two apertures in the valve seat. The member 1 may be of synthetic rubber and the seat may have a pair of semi-circular apertures or a plurality of small circular apertures.
Patent GB-1022550-A (GB)
Title: Improvements in or relating to clamps
Inventor: WEBER HANS
IPC: B25B5/06
Filed: 1964-11-10
Abstract: 1,022,550. Cramps. WEBER & SCHINDLER A.G. SCHRAUBENFABRIK. Nov. 10, 1964, No. 45806/64. Heading B4W. A cramp for securing planks 5 and 6 together comprises two rigid jaws constituted by angleplates of which the legs 1, 2 are longer than the legs 3, 4, the jaws being connected by a flexible cable 8 or metallic band having one end secured at 7 to the long leg 1 and tightening means comprising a rotatable member supported on the long leg 2 and adapted to be rotated by an arm 11. The drum 10 of a windlass is journalled at one end in a bore in the leg 2 and at the other end in a bore in a housing 9 secured to the leg 2, the lever 11 being secured to the pivot pin of the drum 10 which is journalled in the cover of the housing. For preventing rotation of the lever 11, a pin 13 slidably mounted in the lever is selectively engaged with any one of a circular row of holes provided in the housing. The pin is retained in the selected bore by the friction due to the cable tending to unwind. The friction is overcome by operating the arm 11 and thereby releasing the pin 13 which is urged to retract from the bore by a spring 15.
Patent GB-1190397-A (GB)
Title: Solid State Plasma Maser
Inventor: FEINSTEIN JOSEPH
IPC: H01S1/00
Filed: 1967-10-06
Abstract: 1,190,397. Masers; semi-conductor devices. VARIAN ASSOCIATES. 6 Oct., 1967 [25 Nov., 1966], No. 45888/67. Headings H1C and H1K. A tunable maser generating coherent electromagnetic wave energy in the millimeter and infra-red range comprises a solid state active medium in the form of bismuth or a semiconductor, the medium being characterized by having a non-parabolic conduction band structure with a curvature such that the effective masses of the conduction band electrons are less than the mass value of free electrons. Population inversion is created between unequally spaced cyclotron resonance levels of the conduction band electrons by applying orthogonally crossed electric E and magnetic H 0  fields which are oriented in a major plane of the active medium. The semi-conductor material may be indium antimonide or bismuth antimonide. Fig. 5 shows a thin film 15 of the active medium which is sandwiched between a pair of quartz or sapphire slabs 16, 17 having outer surfaces 18, 19 silvered to form a resonator. The thin film, which may be bismuth, is formed by vapour deposition and is positioned at an antinode of the electric field pattern of the resonator to maximize coupling with an output pipe 26. The E field is produced by D.C. applied through leads 20, 21 to the active medium and the H 0  field is produced by poles 23, 24. Preferably the maser is immersed in a dewar 25 containing liquid helium or nitrogen. In Fig. 6 the E field is produced by an R.F. pump source 27 which is coupled through a guide 28 and iris 29 to a semi-confocal resonant cavity 30. Output power from an active medium 33 in the form of a thin plate or slab of indium antimonide 33 is passed through an iris 31 and a guide 32. A further arrangement is described, Fig. 7, in which the maser active medium comprises a thin film deposited on a sapphire substrate and located between external reflectors 42, 43. A further thin film arrangement is described which is similar to the sandwich structure of Fig. 5 except that one reflecting surface is curved, Fig. 8 (not shown). In each case the generated frequency can be altered by adjusting the magnitude of the magnetic field H 0 .
Patent GB-1240514-A (GB)
Title: Trays for the storage of articles
Inventor: MARCAN BETTY MURIEL
IPC: B65D5/30
Filed: 1968-09-30
Abstract: 1,240,514. Stockable, collapsible toys. B. M. MARCAN. 29 Sept., 1969 [30 Sept., 1968], No. 46254/68. Heading B8P. A stackable, collapsible tray erected from a blank, e.g. plastic, comprises side walls 2-5 which have a rib 10 provided at each end thereof so that upon tray erection two adjacent ribs 10 abut to form a stacking support. Ribs 12 may be provided on flaps 11 so that the ribs 10, 12 fit one within the other (Fig. 4). The walls may be interconnected by press-fastenings 13, 14 and/or interlocking teeth (Figs. 7, 8) or by tongues and slots (Figs. 5, 6), the tongues passing across the corners inward of the abutting ribs 10. Staples may supplement the above interconnections. The walls may be inclined outwardly or walls 2, 4 and end portions 6 of walls 3, 5 may be turned outwardly and upwardly to form stacking ledges. The walls and base may be strengthened by embossing or corrugating.
Patent GB-1271228-A (GB)
Title: Fluidic switching circuit
Inventor: HEATH RONALD ALFRED
IPC: F15C4/00
Filed: 1968-09-30
Abstract: 1,271,228. Fluidswitching circuits. JOSEPH LUCAS (INDUSTRIES) Ltd. Sept. 12, 1969 [Sept. 30, 1968], No.46265/68. Heading F1P. A fluid switching circuit comprises a bi-stable device 10 having a pair of control ports 14, 15, one outlet port 13 connected directly to one control port 22 of a proportional amplifier device 17 and the other outlet 12 connected to the control port 28 of a monostable device 24, having its outlet port 29 connected to the control port 23 of the device 17. The device 17 has an inlet 18 connected to a pressure source P whilst the inlets to devices 10 and 24 are fed through restrictors. The device 24 may be replaced by a bi-stable device biased to provide an output only when an output appears at the device 10 from the port 12.
Patent GB-1193195-A (GB)
Title: Polyvinyl-Aromatic Compositions and the Manufacture thereof.
Inventor: MUIRHEAD LESLIE ALFRED
IPC: C08L53/02
Filed: 1967-10-12
Abstract: 1,193,195. Toughened polyvinyl aromatic compositions containing petroleum jelly. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 26 Aug., 1968 [12 Oct., 1967], No. 46544/67. Heading C3G. A composition comprising a toughened polyvinyl aromatic compound prepared by polymerizing a vinyl aromatic monomer in admixture with an elastomer is prepared by forming a blend of said toughened polyvinyl aromatic compound and a lubricant additive comprising at least 13%, by weight of the total composition, of (a) a petroleum jelly or (b) petroleum jelly and not more than 40%, by weight of the petroleum jelly, of a mineral oil. The said lubricant additive may be incorporated during a polymerization stage in the manufacture of the polyvinyl aromatic compound. The composition may contain an alkanolamide, e.g. lauric diethanolamide. In the examples, petroleum jelly is blended with a toughened polystyrene formed by interpolymerization of styrene with a butadiene-styrene rubber or polybutadiene. An example is given of polymerizing styrene in the presence of butadiene-styrene rubber, petroleum jelly and white oil.
Patent GB-1466907-A (GB)
Title: Dental patient simulator
IPC: G09B23/28
Filed: 1974-10-29
Abstract: 1466907 Teaching dentistry DEN-TAL-EZ MFG CO 29 Oct 1974 [5 Nov 1973] 46708/74 Heading G5G A dental patient simulator device comprises: a simulated human skull 15 having an upper jaw 22 fixed thereto; a lower jaw 24 mounted for pivotal and transverse movement relative to the upper jaw 22; means 59, 87 for releasably holding the lower jaw in a pivotally moved position; practice dentures 23, 26 releasably secured to said upper and lower jaws; and a covering skin 27 for said skull, upper jaw and lower jaw, the skin simulating human skin and including a mouth portion which forms with the jaws a mouth cavity to which access is had only through the mouth portion. The mouth cavity may include a resilient tongue portion 71 and a soft palate closing the throat end of the mouth. The skull 15 may include a neck post 16 that fits within a mating socket provided in a headless manikin (17), Fig. 1 (not shown), so that there is simulated a complete human body which is adapted to be placed in a seated position in a dental chair.
Patent GB-1394852-A (GB)
Title: Apparatus for converting high polymers into fuels
IPC: C08J11/00
Filed: 1972-05-05
Abstract: 1394852 Decomposing polymers into liquids and gases NIIGATA TEKKOSHO KK 5 May 1972 [18 Aug 1971] 46774/74 Divided out of 1394851 Heading C5E Apparatus for decomposing high polymers into liquid and gaseous fuels comprises an extruder 11 having a rotatable screw shaft 13 and a nozzle 30, a heated tank 36 connected to the end of the nozzle 30, a rotary pump 38 for reducing the pressure in the tank 36, and a sink and float tank 40 for storing gaseous and liquid fuel produced by decomposition of the polymer. The fuel produced is in part passed to a combustion apparatus 44 and in part passed to a burner 47 which is coupled to a gas- or steamturbine 48 connected to an electrical generator 49. The polymer is progressively heated to 160-400‹ C. by the heater 14a, to 400-600‹ C. by the heater 14b and to 600-1000‹ C. by the heater 14c. The tank 36 is heated by exhaust gas from the burner 47 which passes through the pipe 37.
Patent GB-1028654-A (GB)
Title: Improvements in means for fastening the edges of sheet members
IPC: D21F7/10
Filed: 1962-12-11
Abstract: 1,028,654. Sliding clasp fasteners. NASWORTHY FASTENERS Inc. Dec. 11, 1962 [Dec. 14, 1961], No. 46797/62. Heading E2S. Means for fastening the edges 10, 11 of sheet members to a longitudinal member 16 lying in substantially the same plane as the edges of the sheet members and spaced from the edges, comprises fastening elements 17, 18 each having first and second ends for respectively securing the element to an edge of a sheet member and retaining the longitudinal member, and engagement means intermediate to ends for co-operation with separate element-positioning means, whereby the elements may be positioned so that the retaining ends of the elements are aligned with the longitudinal member for subsequent engagement thereof. As shown, the engagement means is in the form of a wing portion 84-or 86 which cooperates with a groove 60, 61 of a tool 15 constituting the element-positioning means. The tool 15 includes a handle portion 48, Fig. 5 (not shown), and a needle 75 to which the member 16, in the form of a cable, is attached, the arrangement being such that as the tool is drawn over the elements 17, 18, slots 85, 86 in the elements are aligned by the tool for passage through the slots of the member 16.
Patent GB-1332798-A (GB)
Title: Hydraulic system
IPC: F04B49/08
Filed: 1970-10-06
Abstract: 1332798 Hydrostatic transmission control BORG-WARNER CORP 6 Oct 1970 [16 Oct 1969] 47424/70 Heading F2D [Also in Division G3] A variable displacement pump 10 supplying motor 45 is controlled by a flow compensator valve 29 which responds to the pressure drop across restrictor 40 to establish a control pressure in servomotor 19 by connecting the latter to supply and exhaust ports 53, 52 via line 30 and normally-connected ports 31, 48 in pressure compensator valve 20. Auxiliary piston 17 responds to pump output pressure to provide a bias opposing servomotor 19. The valve 20 has a spool 21 moved leftwards by excess output pressure to connect servomotor 19 to sump 34, the spool also responding via cam 27 and spring 26 to swashplate displacement so as to maintain torque input constant up to a datum pressure above which the swashplate angle is reduced more rapidly to provide a sharp cut-off. With a restrictor located at 62, pilot valve 61 opens at a set pressure to open by-pass valve 63 and simultaneously causes valve 29 to reduce pump displacement. When restrictor 62 is shifted to 72, the pilot valve no longer controls valve 29. In modifications of this system, the swashplate angle might be reversed and the flow compensator spool can have differential area end leads, in which latter case spring 46 can be omitted.  In an alternative system (Fig. 2, not shown), the pressure compensator spool is embodied in the main servo-piston (78) and acts at a preset pressure to admit fluid from the output line via (90, 91, 87, 88) to the servomotor to reduce pump displacement. In a further system (Fig. 3, not shown), the restrictor 40 is in the return line downstream of motor 45 and the pilot valve 68 acts to admit fluid to chamber 38 of the flow compensator valve to cause the latter to reduce pump displacement. The pressure compensator spool (120) is operated in this case by a floating lever connected at one end to a pressure sensor (95) and at the other end to the swashplate. Piston 17 is omitted although its bias spring (94) as used in Fig. 2, is retained. In Fig. 4, (not shown), the flow compensating and by-pass functions are provided by a single valve.
Patent GB-1520387-A (GB)
Title: Electric plug connector member
IPC: H01R13/502
Filed: 1976-11-15
Abstract: 1520387 Plug connector FRIEDRICK WOLF KG 15 Nov 1976 [16 Dec 1975] 47526/76 Heading H2E A plug connector comprises a housing 7 and a forward part 1 which is adapted to be connected to the housing and carries contacts 3 or an insulating contact carrier 2, the forward part and the housing being joined by a bayonet joint 6, 8. The forward part 1 has a cable clamp 16 integral with it and may be additionally attached to the housing by a screw passing through adjacent projections on the housing and forward part (Fig. 2, not shown). Alternatively the additional attachment may be a rivet or clip fastening the projections. A sealing member 9 is provided on the housing.
Patent GB-959153-A (GB)
Title: Improvements in or relating to peak detector circuits
IPC: H03K9/00
Filed: 1962-12-19
Abstract: 959,153. Transistor pulse circuits. AMPEX CORPORATION. Dec. 19, 1962 [Jan. 31, 1962], No. 47980/62. Heading H3T. In a system for generating a pulse in response to a peak in an input signal, the peaks are passed by a transistor clipping circuit to a differentiating circuit, the output of which controls a transistorized pulse generator. Fig. 1 shows a circuit responsive to non-return to zero signals from a magnetic storage medium. The signals are fed in push-pull to the bases of transistors 10, 11, which, with transistor 35, form an emitter-coupled clipping circuit. Transistors 10, 11 become respectively conductive only during the negative peak of the waveforms at terminals 12, 13, thus removing noise and low amplitude signals. The clipping level is adjusted by potentiometer 26. The peaks are passed by transistor 35 to a differentiating circuit comprising inductors 38, 43. The positive half-cycle of the differentiated waveform is converted to a positive pulse by transistors 40, 41, 50, the leading edge of the pulse occurring approximately at the time of each peak in the input to terminals 12, 13.
Patent GB-1205455-A (GB)
Title: Wellhead pipe hanging apparatus
Inventor: FOWLER JOHN HYDE
IPC: E21B33/04
Filed: 1967-10-23
Abstract: 1,205,455. Wells, &c. ROCKWELL MFG. CO. 23 Oct., 1967 [7 Nov., 1966], No. 48095/67. Heading E1F. Well-pipe suspension apparatus comprises segments 40 mutually aligned by pins 54 and slidably guided in bowl 66 by pins 85 engaging slots 82 in the bowl. The bowl may be in halves with latch means 71 to secure them together. The assembly of segments and bowl may be dropped down a well-head along a pipe until it abuts a shoulder in the well-head with step 64, whereafter the segments descend in the bowl to grip the pipe. Alternatively, in a well-head, each bowl half is fixed to a ram movable normally to the pipe. Movement of the rams brings the bowl halves together and engages alignment pins 54 in their respective holes. Thereafter, the rams are retracted, leaving the assembly free to fall along the pipe.
Patent GB-1069667-A (GB)
Title: Crab-supporting beam for an overhead travelling crane
IPC: B66C19/00
Filed: 1965-11-17
Abstract: 1,069,667. Overhead travelling cranes. BIURO STUDIOW I PROJEKTOW KONSTRUKCJI STALOWYCH " MOSTOSTAL ". Nov. 17, 1965 [Nov. 21, 1964], No. 48945/65. Heading B8B. The crab 9 of an overhead travelling crane runs on rails 8 supported by a beam 2 of hollow construction stiffened by transverse and longitudinal ribs 3, 4. Inside the beam are passages 11 for servicing the crane and supports 12 for ropes.
Patent GB-1302620-A (GB)
IPC: D04C3/06
Filed: 1970-10-16
Abstract: 1302620 Positive detents; one-way detents EMHERZOG 16 Oct 1970 [17 Oct 1969] 49192/70 Heading F2E [Also in Division D1] A locking device for a braiding machine bobbin support 1 includes a toothed rim 2 to which the bobbin is non-rotatably coupled, and two pawls 4, 7 which ensure that the bobbin turns in one direction only. Engagement of the non-return pawl 4 with the rim prevents anticlockwise rotation. A forward stop pawl 7, pivoted on an arm 6 is released from the rim when the thread tension element turns the arm anticlockwise. The pawl 7 is biased tangentially of the rim by a spring 5 so that it cannot reenter the vacated gap. The pawl engages the next gap when the rim rotates as the thread is withdrawn.
Patent GB-1089778-A (GB)
Title: Air gun
IPC: F41B11/723
Filed: 1964-12-04
Abstract: 1,089,778. Air guns. F. WALTHER. Dec. 4, 1964 [Dec. 12, 1963], No. 49480/64. Addition to 943,378. Heading F3C. In an air gun of the kind described in the parent Specification the air release valve 39 is opened on release of a spring-loaded plunger 23 which is normally held in the position shown with the spring 27 compressed by an abutment 34 of a sear 31. The abutment 34 is prevented from moving out of the path of the plunger by abutment of the part 35 of the sear 31 with the trigger arm 36,. the latter moving downwards on actuation of the trigger to permit the plunger to strike the valve stem 38 and allow air compressed in the top of cylinder 12 and in chamber 62 to fire a round. The plunger is automatically returned to the position shown on cocking the gun with the lever 19 by engagement of the end 25 of rod 24 with a projection 14a on the piston rod 14, sear 31 being returned to the position in which abutment 34 is held in front of the plunger by engagement of the end 29 of the sear with the cam face 28 of the plunger. The barrel is locked in position by engagement of the sloping face 43 of a spring-loaded bolt 41 with the underside of a pin 42, the spring 44 being sufficiently strong so as to always pull the barrel down into the same closed position. The lock is released by upward pressure on the end 49 of a cranked lever 47 which through draw-bar 45 withdraws the bolt 41.